Use the data from Exercise 53 to examine the association between Weight and %Body Fat.
In Exercise 53

a) Find a 90% confidence interval for the slope of the regression line of % Body Fat on Weight.
b) Interpret your interval in context.
c) Give a 95% prediction interval for the % Body Fat of an individual who weighs 165 pounds.

Waist Weight Body Fat Waist Weight Body Fat (in.) (lb) 32 175 36 181 38 200 33 159 39 196 40 192 41 205 35 173 38 187 38 188 (in.) (lb) 188 240 175 168 246 160 215 159 146 219 21 40 36 32 38 21 25 12